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    Submersible Level Transmitter, 4-20mA/RS485, 0-50m

    A submersible level transmitter is an instrument used to measure liquid levels by detecting hydrostatic pressure at the bottom of a tank, well, or reservoir. SISCO's submersible level transmitter provides accurate and stable liquid level measurement with a 0–50m measuring range, 304 stainless steel construction, and optional 4-20mA or RS485 output.
    SKU: SISCO-SLT-PT3811
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    $96.89
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    🚚 Free shipping
    🔙 30-day returns
    📅 Delivery: 7-12 days
    Overview


    The submersible level sensor is designed for accurate and continuous liquid level measurement based on hydrostatic pressure technology. It supports measuring ranges from 0 to 50 meters and provides reliable water level monitoring for groundwater wells, reservoirs, storage tanks, and industrial liquid applications.


    0-50m submersible level transmitter


    Wide Measuring Range up to 50m for Various Liquid Level Measurement

    • The submersible level transmitter supports a measuring range of 0–50m, providing accurate and reliable liquid level measurement for water tanks, reservoirs, groundwater monitoring, and industrial applications.
    • With optional accuracy levels of 0.5%FS and 1.0%FS, this hydrostatic level transmitter delivers stable and precise measurement results, meeting the requirements of water conservancy, oil, and industrial liquid level monitoring systems.
    • The SISCO submersible level transmitter supports 4-20mA analog output and RS485 digital communication, allowing seamless connection with PLC systems, data acquisition equipment, and remote monitoring platforms.
    304 stainless steel submersible level transmitter

    Reliable Water Level Monitoring for Multiple Application

    • The 304 stainless steel submersible level transmitter is designed for accurate and continuous liquid level monitoring, offering reliable operation in groundwater wells, water reservoirs, storage tanks, and industrial liquid measurement applications.
    • Based on hydrostatic pressure measurement technology, the submersible water level sensor provides continuous and stable liquid level monitoring with excellent repeatability and long service life.
    • Designed for continuous water level measurement, this water level transmitter is widely used in oil fields, water conservancy projects, urban water supply systems, groundwater level monitoring, reservoirs, and storage tanks.

     

     

    Applications

    The SISCO submersible level transmitter is widely applied in water resource management and industrial liquid measurement, including agricultural irrigation, dams, hydroelectric power stations, water tanks, reservoirs, groundwater wells, and wastewater treatment plants. It helps users achieve real-time and accurate liquid level monitoring with reliable performance.

    Submersible level transmitter for dam

    Dam

    Submersible level transmitter for hydroelectric power station

    Hydroelectric Power Station

    Submersible level transmitter for water tank

    Water Tank

    Submersible level transmitter for agricultural irrigation

    Agricultural Irrigation

    Specs
    Model SISCO-SLT-PT3811
    Measuring Range 0-5m, 0-10m, 0-20m. 0-30m, 0-40m, 0-50m
    Accuracy 0.5%FS, 1.0%FS 
    Output Signal 4-20mA, RS485 
    Power Supply 24VDC
    Electrical Connection Direct Lead Wire, 2088 Junction Box
    Load Capacity Current Output: R = (U-8V)/0.020Ω
    Temperature Compensation 0–75°C
    Operating Temperature -10–85°C
    Safety Overload 150%
    Limit Overload 200%
    Temperature Drift 0.02%FS/°C
    Long-Term Stability 0.2%FS/Year
    Contact Material 304, 316L Stainless Steel, Ceramic
    Weight 2kg


    Dimension: (unit: mm)
    0-50m submersible level transmitter dimension

     Wiring Diagram

    0-50m submersible level transmitter wiring diagram

    FAQs

    Q1: What is a submersible level transmitter?
    A1: A submersible level transmitter is a liquid level measurement device designed to be immersed directly into a tank, well, reservoir, or other liquid environment. It measures liquid level by detecting hydrostatic pressure and converts the pressure signal into an electrical output, such as 4-20mA or RS485, for monitoring and control systems.

    Q2: How does a submersible level transmitter work?
    A2: A submersible level transmitter works based on hydrostatic pressure measurement. As the liquid level increases, the pressure at the bottom of the liquid column also increases. The transmitter measures this pressure change and converts it into a proportional electrical signal that represents the liquid level.

    Q3: How to choose the right submersible level transmitter?
    A3: When selecting a submersible level transmitter, consider factors such as measuring range, cable length, output signal, accuracy, liquid type, and installation conditions. Models with 4-20mA output are commonly used in industrial control systems, while RS485 versions are suitable for digital communication and remote monitoring applications.

    Tips: What is the measuring range of the submersible level transmitter?

    The SISCO submersible level transmitter supports a wide measuring range from 0 to 50 meters, making it suitable for various liquid level measurement applications, including groundwater wells, reservoirs, water tanks, and industrial storage systems. Different measuring ranges can be customized according to application requirements.

     

    Warranty

    Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.


    What is covered?

    SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.


    What is not covered?

    • Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
    • Expendable parts.
    • Routine cleaning or normal cosmetic and mechanical wear.
    • Damage from misuse, abuse or neglect.
    • Damage from use of parts other than SISCO approved.
    • Damage from use outside the product’s usage or storage parameters.
    • Damage from use of parts not sold by SISCO.
    • Damage from modification or incorporation into other products.
    • Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
    • Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
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